Locking device



April 6, 1943.

E. H. McCLOUD LOCKING DEVICE Original Filed Nov. 19, 1940 2 Sheets-Sheet 1 I/IVE/JTO/i EDWARD/1.: (Z000 ATTORNEYS April 6, 1943. E. H. MccLouD LOCKING DEVICE Original Filed Nov. 19, 1940 2 SheetS-Sheet-Z INVLWTOR EDWARD I1 'I A TTORA/[YS Patented Apr. 6, 1943 LOCKING DEVICE Edward H. McCloud, Columbus, Ohio, assignor to The Kinnear Manufacturing Company, Golumbus, Ohio, a corporation of Ohio Original application November 19, 1940, Serial No.

366,269. Divided and this 1941, Serial No. 397,417

8 Claims. (01. 160-201) The present invention relates to a grille or barricade, particularly such a grille'as is adapted to be rolled up on a drum and serving to obstruct passageways, openings, etc. In order to close oif certain passageways, such as elevator wells,

gate openings in iron fences, openings in .the front of a garage, etc. or to a bank vault, it is customary to provide a metal grille of considerable size which is adapted to be-rolled up on a drum when entrance is desired, but can be securely locked in place to close off the passageway.

This application'is a divisionof my prior application Serial No. 366,269 filed November 19, 1940. A grille of this character was often made of complicated design, inthe form of lattice-work made up'of a large number of strip elements bolted or pivoted together. Ordinarily these elements are of a multitudinous number of shapes and sizes and-are individually designed for each separate grille, depending on the size, shape and purpose of the grille. It is apparent that a-grille of this character is quite expensive inthat it was usually made to order and the parts cannot ordinarily be substituted for-.one another, and replacements are made only with-great difiiculty. In order to l'ck.the grille. in place it has, been customary toemploy the bolt form of lock, positioned at one. vertical edge, or-in the case of an extremely wide grille positioned at both vertical edges, the walls adjacent these edges being provided with apertures which are adapted to receive the bolts-of. the locks. Theselocks are 'usually permanently placed in position by the manufacturer according-to the customers specification, and the grille must-be individually designed as a whole to accommodate the desired form of. lock and the required position of the lock with respect to the grille. These considerationsadd still further to the expense of the grille,..not only in connection with the special design of the grille with respect to the position of the lookybut also in providing a pair of locks at opposite edges of the grille in order to secure both edges to the adjacent supporting framework.

In order to permit these locks to be unlocked from either side of the grille, it is customary to provide locks having keyholes accessible from each side and maintaining the lock itself in a permanent position. It is apparent that a tumbler lock, in which the key can be inserted from one side only of thelock, could not be employed in the prior form of. grille, in ca e it were desired to unlock and lock the grille from either side of the grille.

The primary object of the present invention is to provide a. grille having a. construction by which both vertical edges of the grille may be temporarily locked in place by a simple mechapplication June 10,

anism, and controlled from a single locking unit positioned at any desired distance from either edge of the grille. r

A further object is toprovide-a grille in which thelock is readily accessible from either side of the grille, and employing a lock of that type in which the key can beinserted only from one side of the look, as in the case of the ordinary tumbler lock.

The invention will be'better understood when the specification is perused in connection with the accompanying drawings.

, In the drawings: r I 5 I Figure 1 is an elevational view, in diagram,. of theimproved grillepand. the. immediate1y surrounding supportframework. e

Figure 2 is a sectional view showing a portion of the grille and including a transverse section across one of the supporting .uprights.- J

Figure 3 is an elevational view looking toward .the inner surface of a typical support upright,

showing the latch in section by which the grille can be rigidly secured to the upright. Figure 4 is a view similar to Figure 3 but illustrating the efi'ect of rotatinjglth e latch to'obtain a locking action.

Figure 5 is-a fragmenta y' elevational view of the grille immediately. surrounding the lock and the latching members, showing the support up.- rights in section in order to illustrate asimple way in which adjustments of the latching-position of the grille maybe obtained.- Figure 6 is an enlarged fra mentary 'view look,- ingtoward therear. of-the locking, device, with .the back plate removedito show the action of tion byrotation of the 1 Figure 9 is a fragmentary viewlooking down on the top edge of the locking device, and showing a portion of the device in section.

Referring more particularly to Figure 1, the improved grille is formed essentially of metal strips, preferably of an aluminum alloy, and this strip material appears in two general shapes. One of the strip elements, indicated at 1, takes the form generally of a W with the horizontal portion indicated at 2 and the reverse curved portion indicated at 3, the ends of the strip being provided with diagonally extending portions 4 which terminate in short vertical portions 5. The immediately adjacent strip, generally designated 6, has a horizontal portion 1 which terminates at theright-hand end, as seen'in Figure 2, in a vertical portion 8 and at the other end has a diagonal portion 9 which merges into a short vertical portion ID. The vertical portions and I0, also the portion 8 of the strips are provided with apertures for receiving a rod l2 which may be formed of cold rolled steel.

The lower end of the grille supports a T-section plate I6 which is carried by a number of equi-distantly spaced straps, the latter having When the grille has been moved to itslowermost position it may be desirable to prevent any unauthorized upward movement of the grille. For this reason it is necessary to install a suitable form of lock. A feature of my invention is the provision by which an improved locking device is installed, the arrangement being such that the device can be readily placed in any required position throughout the area of the grille by'the manufacturer and as called for by the customer, without disturbing in any considerable degree the assembling operation of the various grille parts.

As shown more particularly in Figure 5, the lock itself is designated 29 and' is pivotally mounted, as will be described hereinafter, within a metal frame'3ll. This frame is' formed of two parts bolted together, as indicated at-'3|, and provided with extensions 32 which are positioned on opposite sides of a doublethicknes's welded portion '1 of a pair of strip units 6. The extensions 32 are joined by a web 33'to the upright portions 34, the latter being spanned by horizontal bars 35, which together with the vertical portions 34 constitute a rectangular frame with a square opening 36 therein. The bars 35 are provided with circular openings 31, the upper one of which is adapted to receive a pivot rod 36 which is secured to the lock 29'. The opening 31 in the lower horizontal bar 35 is of a size sufiicient to permit a bolt 39 to reciprocate therethrough in a vertical direction. This bolt is secured to a slidable plate 40 (Figures 7 and 8) which forms part of the locking mechanism. The pivot rod 38 and the bolt 39 are in vertical alignment, and the lock 29 is of a size somewhat smaller than the opening 36, thus permitting the lock to be rotated in a horizontal plane for reasons which will appear hereinafter. The upper and lower bars of the frame 30 are provided with spaced wing elements 4| which are apertured to receive the rods |2.

The lower rod I2, as seen in Figure 5,'carrie's at each end a latching device 42 the actuating element for which is constituted of a cylindrical member 43 keyed to the rod l2 and which has an enlargement 44 provided with a wing extension 45. There is a lug 46 integrally secured to the cylindrical enlargement 44, the position of the lug being such as to limit the rotational movement of the cylinder 43 when the wing extension 45 is pulled upwardly by hand. Under these'conditions the cylinder 43 will rotate the rod l2 and the lug 46 will contact the'lower surface of the horizontal member 35. The cylindrical enlargement 44 is provided with a bore 41 which is adapted to receive the bolt 39 when the cylinder has been moved clockwise, as seen in Figure 8, and the lug 46 abuts the lower transverse member 35.

The lock 29 is preferably of rectangular configuration with its upper and lower surfaces slightly curved so as to facilitate the horizontal rotation of the lock within the frame members 3|], 35. The vertical sides of the lock are also provided with curved surfaces, as indicated at e in Figure 9. In order to facilitate the vertical alignment of the look within its frame, there may be provided a spring-urged catch 49 which fits into an opening 50 in one of the side frame members 30. It is apparent that as the lock 29 is rotated by hand on its pivots 38, 39 through 180 degrees, the catch 49 will fit into the groove 50 on the opposite side frame member 30 so that in both positions,'l80 degrees apart, the front and rear faces of the lock-are exactly in alignment with the front and rear faces of the frame members so, as.

tumbler block indicated at 56 (Figures 7 and 8) of-any suitable and well known design. It is preferred that the tumbler block be of the type which receives the key only at one end, for example, Corwin or Yale tumbler locks. Locks of this character'are not readily susceptible to opening by unauthorized persons. As can best be'seen in Figures 7.=and 8, the lower part 48' of the lock block 29'i's provided with a semicircular opening 51 which is adapted to receive the bolt 39 and permit the latter to reciprocate vertically in the opening. This bolt is maintained in' its vertical position by a semi-circular opening 58, directly opposite the opening 51 and formed in a web59 which extends transversely inwardly from the other portion or cover 48 of the lock block 29.

There is a cam plate 60 secured to the righthand face of the tumbler block 56 (Figures '7 and 8) by screws 6|, this cam plate having a spiral groove '62 of a width to accommodate a pin 63. The cam'plate is also held in position by a rectangular projection 64 which forms part of the tumbler mechanism contained within the block 55, so that as these tumblers are rotated, in a manner to be described, the rectangular projection 64 and the screw 6| will cause the cam plate to berotated. The pin 63 is secured to the slidable plate 40 and projects inwardly from that plate to enter the groove 62. Consequently as the cam plate is rotated, on rotation of the tumblers, the pin 63 is caused eventually to move downwardly, carrying with it the plate 40 and causing the insertion of the bolt 39 in the opening 41 of the circular enlargement 44.

The lock block 56' is provided at its outer face with an opening 65 (Figure 5) for receiving a key 65 by which the tumblers are rotated. It is apparent that as the key is turned, and assuming that the wing projection 45 has been moved to such a position as to bring the opening 4'! in alignment with the bolt 39, the tumblers cause the slidable plate 40 to move downwardly by the cam action and the bolt 39 to enter the opening 41, thus 10cking the rod I2 standpoint in either of these positions.

against rotation. When the key is moved to'it's unlocked position rotation of the tumblers moves the bolt -39 out of the opening 41, thus permitting therod I2 to be rotated when the wing element 45'is moved downwardly. -I Figure 7 shows the relative positions of the parts when the tumblers have been moved to their unlocked position and the wing projection 45' has-been moved through an arc to the right as far asdt will go; as determined by the abutment of the lug t6 against the lower'bar 35. Figure 3 shows a locked condition in that the wing'" element 45 has been moved through an arc to its extreme left-hand position, .thus' rotat ing the rod l2, and held in=that position by the entry! of the bolt 39 'into' the opening-41.

"Consequently the rotation of the-key in thelock block serve to permitthe rod- I2; which passes through the cylinder 43, to-be-either rotated by the wing element 45or to be locked in a particular position depending-"on-which way the key is turned Thelocking effect can" be obtained from either-sideofthe grille because, as pointed outshereinbefore, the lock element '29 canbe rotated -in'a" horizontal directionat the pivots 38; 39 and-isequally efiective'from the locking The-latches '42, which will now be described, are so'con'structed that as the rod '12. which carries these latches is rotated in one-sdirectlon .the latches are loosened to permit-the grille freely to slide in its end uprightsupporting frames, but-when the rod rotated'in the other direction the-latches secure the grille againstzupward -or downward movement. As seen in Figure :2,

these upright frames are provided at'iboth sides of theerillaand are -'preferably formed of" a -:pair ofsheet metal elements fifisecured to an of drums-or hubs spaced -from .-l one n t er an donnected t ether byp f. p i ly positioned bars 12; of-substantially semicircular section.,;

, The elements 'II,;12 may be formed a a .ca st ving, the hubs H havm openings .therethrough of va Ill-shaped configuration which fit about a fiattened portion of the rod I2 to givea key effect. Thus each unitary element II, I2 is securely mounted against rotation on therod i2.

The shapeof the bore in the hub member and the flattened shape of the rod-.I2. are such as to permit the composite latch element "H, ,12 tokslide alongthe'rod I 2.over .the'flattened portion thereof. However,.th latch element is detachably secured to the rod by meansof a cotter pin 73 atthe end of each rod.

Each pair. of extensions of the sheet metal elements 66 is provided, with a square-shaped cut-out 14, at a position directly in line with each latching element 42, At the position of each cutout there'is provided a box-shaped'sheet metal member I5, ofa length somewhat greater than the height of the cut-outs I4. The member is providedwith a slot I6 for receiving a'screw TI which enters one of the sides of the housing formed by the metal elements 68; By loosening the screw the element I5fmay bemovedin a verticaldirection to an extent determined by the length of the slot I6. Each box-shaped element dition is shown in Figure 4;

I5 has portions 15' (Figures 3 and 4) at its inner face which extend toward one another and cover the inner surfaces of the two outermost hub members 1|. Thus these extending portions are positioned intermediate two adjacent hub members 'II of eachlatch.

There is an opening I8, preferably of circular configuration, in each pair of inwardly extending portions I5. This opening has a diameter suflicient to accommodate the peripheral surfaces ofeach pair of bars I2 so thatithe rod I2 can be rotated and the opening I8 will accommodate the bars I2, asindicated in-Figureie- The space 19 between the inwardly projecting portions 15' is of a width somewhat greater-than the depth of the bars I2 "so as to permit these bars, and the rod I2 on which they are mounted'to be slid upwardly or-downwardly through this space when the bars'are in vertical alignment.- In Figure 3 there is shown this position of the bars, and as illustrated'the rod I2 can be moved-upwardly through the space between the inwardly projecting portions of the box-like element I5 and then upwardly through the space between the inwardly projecting extensions I0. -As therod I 2 is rotated by moving the wing extension 45 to the left (Figure 7), the bars 12 take a horizontal position, and ifit were attempted to move therod I 2 upwardly these bars would contact the peripheral-edges of the circulanopenings 8. This con It will be understood that the main purpose for the box-like element-I5 is to provide an adjustment of the-height at which the rod I2 can be locked in'place by the latches 42. This adjustment-is controlled by the-loosening ofthescrews H in thesl'ots '16; Even if the element ,15 were entirely removed, the square-shapedcut-outs I4 .would still prevent free movement of-the bars 12 upwardly when these bars are in horizontal-alignment, because vtheiupper surfaces of the bars would-strike the upper edges of the cut-out, I4.

The element 15, therefore; restricts the upward movement-of eachlatch 42 to a very limited length of travel -and in addition provides for adjustability of this limited position through the slot and screw-arrangement 16, ll.

' From theforegoing it is evident :that I have vdisclosed an improved locking device by which a grille may be'maintained in any predetermined vertical position with respect to the side frame uprights or guideways by means oflatching members 42which are controlled through the rotation of one of thelgrille rods I 2. The lattermay be manually-rotated by the wing element 45 and locked in :position bythe turning of a key.65. The'locking'mechanism is soconstructed as to be accessible from either side of the-grille, and its position with respect to the grille" may be readily changed to accommodate customers requirements by a simple modification of the grille elements immediately surrounding the lock. Practically all of the component parts of the grille,

grill and having theends of said rods, a lock, means for mountcen-t 'to-each other, means on -I claim as new and desire to secure by Letters Patent, is:

1. In combination, a grill, the area oiwhich includes a number of spaced parallel rods, means for holding said rods in spaced parallel relation, vertical guides extending on each side of said grill and having slots slidably engaged by the ends of said rods, a lock, means for mounting said lock between any two rods lying adjacent toeach other, means on at least one end of a rod and on the vertical guide therefor whereby when said rodis rotated said grill will be held in locked position, and latch means on said lock adapted to'engage andhold said rod against rotation whenrsaid lock is in locked position.

2. Incombination, a grill, the area of which includes a number of spaced parallel rods, means :Ior'holding said rods in spaced parallel relation, vertical guides extending on each side of said slots slidably engaged by two rods lying adjaat least one end of a rod' and on the vertical guide therefor "whereby when said rod is rotated said grill will ing saidi'locl: between any "be held in-locked position, and latch means on said lock adapted to engage and holdsaidrod against rotation when said lock is in locked position,jsaid means on the end of the rod and its vertical guide including non-circular means on said rod and spaced circular enlargements on said vertical guide.

3. In combination, a grill the area of which in cludes a'number of spaced parallel rods, means for holding said rods in spaced parallel relation, vertical guides extending. on each side of said grill and having slots slidably engaged by the ends of said rods, a lock, means for mounting said lock between any two'rods lying adjacent to. each other, means on at least one end of a rod and on the vertical guide therefor whereby when said rod is rotated said grill will be held in locked position, and latch means on said lock adapted to engage and hold said rod against rotation when said lock is in locked position, said 'ro'd having a block mounted thereon adjacent said lock, said block having an opening, and said latch means including a bolt which is adapted to engage said opening when said rod is rotated to locking position and prevent further rotationthereof.

4. In combination, a grill the area of which includes a number of spaced parallel rods, means 'for holding said rods in spaced parallel relation,

vertical guides extending on each side of said grill and having-slots slidably engaged by the ends of said rods, a lock, means for mounting said lock between any two rods lying adjacent to each other, means on at least one end of a rod and on the vertical guide therefor whereby when saidrod isrotated said grill will be held in locked position, and latch means on said lock adapted to engage and hold said rod against rotation position when said lock is in locked position, said lock including a frame, and means pivotally mounting said lock in said frame where- ,by access thereto may be obtained from either side of said grill. 7

5. In combination, a grill, the area of which includes a number of spaced parallel rods, means for holding said rods in spaced parallel relation, vertical guides extending on each side of said grill and having slots slidably engaged by the ends of said rods, a lock, means for mounting saidlock between any two rods lying adjacent to each other, means on at least one end of a rod and on the vertical guide therefor whereby when said rod is rotated said grill will be held in locked position, and latch means on said lock adapted to engage and hold said rod against rotation when said lock is in locked position, said means on the end of a rod consisting of a pair of hubs and a pair of oppositely positioned bars, said hubs and bars being non-rotatably mounted on said rod.

6. In combination, a grill, the area of which includes a number of spaced parallel rods, means for holding said rods in spaced parallel relation, vertical guides extending on each side of said grill and having slots slidably engaged by the ends of said rods, a lock, means for mounting said lock between any two rods lying adjacent to each other, means on at least one end of a rod and on the vertical guide therefor whereby when said rod is rotated said grill will be held in locked position, and latch means on said lock adaptedto engage and hold said rod against rotation position when said lock is in locked position, said means on the end of a rod consisting of a flattened portion thereon, a pair of hubs and includes a number of spaced parallel rods, means for holding said rods in spaced parallel relation, vertical guides extending on each side of said grill and having slots slidably engaged by the ends of said rods, a lock, means for mounting said lock between any two rods lying adjacent to each other, means on at least one end of a rod and on the vertical guide therefor whereby when said rod is rotated said grill will be held in locked position, and latch means on said lock adapted to engage and hold said rod against rotation when said lock is in locked position, said means on the end of a rod consisting of a fiattened portion thereon, a pair of hubs and a pair of oppositely positioned bars, on said rod end, said hubs having openings therethrough of square configuration, which fit about said flattened portion to provide a key effect, and means for detachably securing said hubs and bars to said rod.

8. In combination, a, grill, the area of which includes a number of spaced parallel rods, means for holding said rods in spaced parallel relation, vertical guides extending on each side of said grill and having slots slidably engaged by the ends of said rods, a lock, means for mounting said'lock between any two rods lying adjacent to each other, means 'on at least one end of' a rod and on the vertical guide therefor whereby when said rod is rotated said grill will be held in locked position, and latch means on said lock adapted to engage and hold said rod against rotation when said lock is in locked position, said means onthe end of a rod consisting of a flattened portion to provide a key effect, and a bOX- shaped member mounted in said vertical guides. said box-shaped member having extensions which cover portions of the surfaces of certain of said hub members in one position of the grill.

EDWARD H. MCCLOUD. 

